This font will have all diacritical marks which can be placed on any characters. This font will allow you to write all diacritical marks. This font is available for $39.95. This font will not convert transliterate to any of my (Indian languages) font.
The sample of diacritical marks is shown below. These diacritical marks can be used on any character and it will align properly to the character. This font is based on Time Roman.